Ecosystem (Interaction between organisms)

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Ecosystem (Interaction between organisms)

Multiple Choice

"The natural surroundings or home of an organism."

• species

• habitat

• community

• population

Multiple Choice

"Few populations of different organisms that live together in one habitat and have mutual interaction with one another.

• community

• ecosystem

• biosphere

• species

Multiple Select

Living organisms are also interdependent on non-living components in the environment such as ...

• water

• light

• air

• soil

Multiple Choice

Which of the following is false about a species?

• a group of organisms that have common characteristics

• there are variations within a species

• can reproduce among themselves to produce offsprings

• can breed with organism of a different species

Within the same species, individual organisms can look very different. For all three species of butterflies, wing color and pattern varies depending on the season during which they were born. The butterflies at the top were born under different temperature and light conditions than the ones at the bottom.​

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source: https://www.nature.com/scitable/content/variation-within-species-4308521/​

Variation within species

Fill in the Blanks

An ecosystem is said to be balanced if the living organisms and non-living components are in a state of harmony without any

Multiple Choice

Experiment 2.1 (C): The effect of humidity on the distribution of organisms.

Which of the following is false?

• anhydrous calcium chloride absorbs any water in its environment

• woodlice prefer to live in a damp environment

• the air in partition U is very dry

• woodlice prefer to live in a dry environment

Multiple Choice

All of following are examples of symbiotic relationship except

• competition

• mutualism

• commensalism

• parasitism

Multiple Choice

Which of the following is not an example of mutualism?

• sea anemone and clown fish

• lichen and fungi

• remora fish and shark

• mynah and buffalo

Fill in the Blanks

The organism that benefits from a commensalism relationship is the called

Multiple Choice

Parasitism is an interaction between organisms where

• only one organism benefits and harms the other

• involves the parasite and commensal

• host is the organism that benefits

• both host and parasite benefit from the interaction

Multiple Choice

............................ hunts another organism for food.

• prey

• commensal

• parasite

• predator

Multiple Choice

"Organisms in one habitat compete for limited supply of basic needs such as light, space, water, food and mates."

This description describes ....

• commensalism

• competition

• symbiosis

• parasitism

Multiple Choice

Which of the following is an example of parasitism?

Well Done!